X0306 4 2019-02-26 0 0000875357 BOK FINANCIAL CORP ET AL BOKF 0001398210 Grunst Martin E C/O FREDERIC DORWART, LAWYERS 124 EAST FOURTH STREET TULSA OK 74103 0 1 0 0 EVP, Chief Risk Officer Common Stock 2019-02-26 4 A 0 5290 0 A 22101 D Represents restricted stock which vests on January 11, 2022. Shares are subject to forfeiture (i) upon termination of employment prior to vesting, and (ii) if certain performance earnings per share targets established pursuant to BOKF Executive Incentive Plan are not met. /s/ Frederic Dorwart, Power of Attorney 2019-02-28